The Observatory broke down their figures, adding that out of the total, 760 of the dead were moderate and Islamist rebels, 426 were ISIL fighters, 190 were civilians and 19 were not yet identified, AFP said.

During the clashes with other rebel groups, ISIL has lost ground in Syria's Idlib and Aleppo but it has consolidated its hold over Raqqa city, the only provincial capital to fall from regime control, AFP reported.